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<html>
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    <title>链客云（Link）客服服务台</title>
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    <style>
        body {
            margin: 0;
        }
    </style>
</head>
<body>

<div id="app"></div>
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        e = window.event || e;
        e.returnValue = ("确定离开当前页面吗？");
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</body>
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